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The scientific, ethical, and policy issues raised by research involving the engraftment of human neural stem cells into the brains of nonhuman primates are explored by an interdisciplinary working group in this [Policy Forum][1]. The authors consider the possibility that this research might alter the cognitive capacities of recipient great apes and monkeys, with potential significance for their moral status. [1]: http://www.sciencemag.org/cgi/content/full/309/5733/385
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Greene et al. (2005) studied this question.
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